Project Description:AAI received an open end contract with the National Institute of Occupational Safety and Health (NIOSH) in Cincinnati in
1997. Since the five year contract expired, it was been extended for an additional year due to AAI's superior service and professional performance.
During that time AAI has provided services for many projects at their facilities.
The Alice B. Hamilton Laboratories required several improvements. The roof was completely replaced from a spray foam to a modified bituminous roof.
The area consisted of approximately 80,000 SF at a cost of $1,000 000.

Once the roof replacement was complete, the entire building envelope was tuck-pointed including new
coping, brick replacement in areas, caulking around doors and windows, replacing doors and constructing a new entrance
vestibule. Total cost of envelope repair and addition was approximately $350,000.